Lift assist lock-down for a soft top

ABSTRACT

A lift assist lock-down assembly for a soft top assembly, the lock-down assembly operably coupled to first and second bows selectively rotatable between an open/sunroof position and an open/downward position. A handle member is rotatable between unlocked and locked positions. A cam and a cam lockout selectively prevent the bows from rotating. When locked in a first position, the bows are prevented from rotating generally rearward/downward, thereby preventing the soft top assembly from moving into the open/downward position. When locked in a second position, the bows are prevented from rotating generally forward/upward, thereby generally preventing the soft top from bouncing or from moving into the open/sunroof position.

CROSS-REFERENCE TO RELATED APPLICATIONS

The instant application is a non-provisional of Ser. No. 62/476,145,filed Mar. 24, 2017, and the instant application is acontinuation-in-part of U.S. patent application Ser. No. 15/354,663,filed Nov. 17, 2016, which claims the benefit of U.S. Provisional PatentApplication No. 62/256,482, filed Nov. 17, 2015. The disclosures of theabove applications are incorporated herein by reference.

FIELD OF THE INVENTION

The present invention relates to a lift assist locking mechanism forsoft tops for vehicles.

BACKGROUND OF THE INVENTION

Foldable soft tops for vehicles are known in the art. These tops providea vehicle with an open air experience with the top folded back orprovide protection from the elements with the top closed. Such tops aretypically manually retractable and during retraction the operator has toperform a series of manipulations of the top. Additionally, manualmanagement and stowage of the fabric materials of the top during foldingmust be accomplished.

In recent years a soft top “sunroof” has become a well-received optionfor folding SUV soft tops. This “sunroof” typically folds back such thatthe operator can readily provide an open air experience to the frontcockpit area without stowing the entire soft top. While this sunroofoption has become a very desirable feature, it does require considerableforce at the start of the deployment due to the operator's angle ofattack. The mass of the frame mechanism for folding the top cover fabricand fabric becoming trapped in the frame mechanism linkage areadditional concerns. Also, fabric management is occasionally problematicin that the fabric can become entangled or interfere with the framemechanism of the top. Another problem is that current systems do notlatch the soft tops in the sunroof position at all and/or do not quicklyand effectively lock the soft tops in the open sunroof position.

In addition, at times an operator may desire an even greater open airexperience where the soft top is moved rearward to an open/downward orstowed positions or removed from the vehicle. Current systems do notlatch the soft tops in the open/downward position at all and/or do notquickly and effectively lock the soft tops in the open/sunroof position.

Therefore, there remains a need in the art to provide a lift-assistlockdown mechanism that locks the soft top in the open/sunroof positionand also allows the soft top to be selectively rotated into anopen/downward position and selectively held in the position.

SUMMARY OF THE INVENTION

In accordance with the present invention, there is provided a lockinglift assist assembly for a soft top, such as a soft top for SUVs,foldable soft tops for SUVs and folding/sliding or otherwise retractablesoft tops for SUVs. The locking lift assist assembly is preferably arearward mounted mechanism, for selectively locking the soft top inposition when in at least the open/sunroof position and theopen/downward position.

The lift assist locking mechanism is lockable in a first direction tohold the soft top in the open/sunroof position, preferably, by a camthat prevents the soft top from moving rearward to the open/downwardposition. The locking mechanism is also selectively releasable by anoperator to allow the soft top to be operably moved from theopen/sunroof position to the open/downward, when desired, preferably, bymoving the cam out of a locking position to allow rotation generallyrearward/down to the open/downward position. A cam lockout prevents thesoft top from rotating back to the open/sunroof position when notdesired. Preferably, when in the open/downward position and locked, thesoft top can be selectively released to a stowed position or releasedand removable from the vehicle.

Further areas of applicability of the present invention will becomeapparent from the detailed description provided hereinafter. It shouldbe understood that the detailed description and specific examples, whileindicating the preferred embodiment of the invention, are intended forpurposes of illustration only and are not intended to limit the scope ofthe invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from thedetailed description and the accompanying drawings, wherein:

FIG. 1 is a side elevation view of a locking lift assist assembly for asoft top in an open/sunroof position, depicting a first upward bow andalso a second upward bow in an upward position and, in phantom, rotatedto a downward position, in accordance with the present invention;

FIG. 2 is a side elevation view of the locking lift assist assembly,with a first half of the housing removed, depicting a handle member inan unlocked position, in accordance with the present invention;

FIG. 3 is a side elevation view of the locking lift assist assembly,with the first half of the housing removed, depicting the handle memberin a locked position, in accordance with the present invention;

FIGS. 4-10 are side elevation views of the locking lift assist assemblyin sequence, with the first half of the housing removed, illustratingoperation of the assembly between unlocked and locked positions, inaccordance with the present invention;

FIG. 11 is a perspective view of an exemplary soft top assembly,depicted in an exemplary closed position, incorporating the locking liftassist assembly, and with a cover material omitted for clarity, inaccordance with the present invention;

FIG. 12 is a perspective view of the exemplary soft top assembly,depicted rotating rearward from the closed position to the exemplaryopen/sunroof position, with the locking lift assist assembly in a firstlocked position, in accordance with the present invention;

FIG. 13 is a perspective view of the exemplary soft top assembly,depicted in an exemplary open/sunroof position, with the locking liftassist assembly in the first locked position, in accordance with thepresent invention;

FIG. 14 is a side elevation of a segment of the locking lift assistassembly depicting the first upward bow rotated to a downward position,in accordance with the present invention; and

FIG. 15 is a perspective view of the exemplary soft top assembly,depicted in an exemplary open/downward position, with the locking liftassist assembly in a second locked position and the first upward bowomitted for clarity, in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following description of the preferred embodiment(s) is merelyexemplary in nature and is in no way intended to limit the invention,its application, or uses.

Referring to FIGS. 1-15 generally, there is provided a locking liftassist assembly shown generally at 10 (or “assembly”), in accordancewith the present invention, for a soft top assembly shown generally at14 for a vehicle 15. The locking lift assist assembly 10 is operablyconnected to the vehicle, preferably, connected to a roll bar or sportbar, most preferably, to a rear sport bar 12. The locking lift assistassembly 10 selectively holds the soft top assembly 14 in predeterminedpositions, as desired. Preferably, the soft top assembly 14 incorporatesat least two lift assist assemblies 10, each connected to a respectiverear sport bar 12.

A first upward bow 16 (or “first arm member”) is operably rotatablyconnected toward its one end to the locking lift assist assembly 10 andis operably connected to a first rear bow 18 toward the other end. Thefirst upward bow 16 is broken along its length in the figures toillustrate that the first upward bow 16 can be any suitable length.

The first rear bow 18 is a cross car bow, and one first upward bow 16 isoperably connected toward both ends of the first rear bow 18.Preferably, the first upward bow 16 is operably rotatably connected to ahousing 20 of the assembly 10 to allow rotation of the first rear bow 18between a generally raised position when the soft top assembly 14 is inthe closed or open/sunroof positions and a generally lowered positionwhen the soft top assembly 14 is in the open/downward position.

A second upward bow 22 (or “second arm member”) is operably rotatablyconnected toward its one end to the locking lift assist assembly 10 andis operably connected to a second rear bow 24 toward the other end. Thesecond upward bow 22 is broken along its length in the figures toillustrate that the second upward bow 22 can be any suitable length.

The second rear bow 24 is a cross car bow. One second upward bow 22 isoperably connected toward both ends of the second rear bow 24.Preferably, the second upward bow 22 is operably rotatably connected tothe housing 20 of the assembly 10 to allow rotation of the second upwardbow 22 between a generally raised position when the soft top assembly 14is in the closed or open/sunroof positions and a generally loweredposition when the soft top assembly 14 is in the open/downward position.Most preferably, the second upward bow 22 is operably rotatablyconnected to the housing 20 of the assembly 10 at a joint showngenerally at 23 a to provide rotation of the second upward bow 22between a generally upward position when the soft top assembly 14 is tobe closed or is functioning in the sunroof position and a generallydownward position when functioning in the open/downward position when amore open air feel is preferred.

Preferably, the housing 20 has at least a first half 19 operablyconnected to a second half 21, where the second half 21 is mostpreferably a cover with at least one opening 25 to accommodate the joint23 a for the second upward bow 22. The housing 20 has a second opening27 which allows rotation of the first upward bow 16 generallyraised/lowered between the open/sunroof position and the open/downwardposition. Preferably, the second opening 27 is provided by a gap betweenthe first and second halves 19,21 of the housing 20. Most preferably,the first upward bow 16 is pivotally connected to the housing 20 atpivot point 29 on the side wall of the opening 27.

It is most desirable that the soft top assembly 14 be selectivelylockable in both the sunroof position and in the stowed position.Accordingly, the lift assist assembly 10 provides lock-down capabilitiesfor the downward position, and, additionally, locking capabilities forthe sunroof position (and closed position), when desired. When in thedownward position, the user can operate the vehicle without locking thesoft top stack. But if the user desires to lock the stack instead, suchas when taking the vehicle off-road to prevent too much stack bouncing,the user can lock the soft top stack. In addition, when locked, the useris able to then remove the whole stack from the vehicle, if desired.

At least one cable 26 is operably coupled to the first upward bow 16,preferably, located within the first upward bow 16. The at least onecable 26 is operated by a user, preferably using a handle mechanism 28on the first rear bow 18 (however, other locations and mechanisms arecontemplated depending on the application without departure from thescope of the present invention) to move at least one cam 30, e.g., tocause rotation of the cam 30. Preferably, the cam 30 keeps the soft topassembly 10 in the open/sunroof position.

The cam 30 is operably connected to the housing 20, most preferably,operably rotatably connected within the housing 20 at pivot point 31.The cam 30 includes a connection feature 32 operably connected to thecable 26 (e.g., connection feature such as a pin, roller, guide feature,and/or boss, etc) extending generally transverse to the body of the cam30, or aperture. Operating the handle mechanism 28 causes the cable 26to pull the connection feature 32 within a slot 34 formed in the housing20 (i.e., see FIGS. 1-2) to thereby rotate the cam 30 in a firstdirection (indicated by arrow ‘a’ in FIG. 4), e.g., counterclockwise.Preferably, at rest, the cam 30 is operably biased toward a directionwith a spring or any other suitable biasing feature. Pulling the cable26 overcomes that bias to move the cam 30 in the first direction ‘a’.Preferably, a biasing member 38, e.g., spring member or other suitablefeature hooks at one end to the cam 30 and the other end 40 at a camlockout 42 and/or to the housing 20.

The cam lockout 42 is operably rotatably connected to the housing 20 atpivot point 43. Preferably, the cam lockout 42 is a spring loaded tang.Preferably, the cam lockout 42 keeps the soft top assembly 10 fromrotating.

The assembly 10 also includes a rotatable member 44 operably rotatablyconnected to the housing 20 at inner joint 23 b. Preferably, therotatable member 44 is operably coupled to the second upward bow 22.Most preferably, the inner joint 23 b is within the housing 20 betweenthe first and second halves 19,21 of the housing 20.

The rotatable member 44 is rotatable in first and second directions(indicated by arrows ‘b’ and ‘e’), e.g., ‘b’ counterclockwise and ‘e’clockwise. The cam 30 abuts against a first surface 48 of the rotatablemember 44, which prevents further rotation of the rotatable member 44and soft top assembly 10. But when the cam 30 is rotated in the firstdirection ‘a’ away from the rotatable member 44 to rotate out ofengagement with the first surface 48, the rotatable member 44 is allowedto rotate in the first direction ‘b’. When the rotatable member 44rotates in the second direction ‘e’ and the cam lockout 42 rotates in afirst direction (indicated by arrow ‘d’), e.g., counterclockwise, asecond surface 50 of the rotatable member 44 abuts against a surface 36of the cam lockout 42, which prevents further rotation of the rotatablemember 44 and soft top assembly 10.

A handle member 46 is also operably rotatably connected to the housing20 at inner joint 23 b. The handle member 46 is rotatable in bothdirections. Preferably, rotatable member 44 and handle member 46 aremounted at inner joint 23 b within the housing 20 having the same axisof rotation. Most preferably, the rotatable member 44 and handle member46 are rotatably mounted within the housing at inner joint 23 b locatedbetween the first and second halves 19,21 of the housing 20, and havingthe same axis of rotation, and the second upward bow 22 is rotatablymounted, having the same axis of rotation relative to the rotatablemember 44 and handle member 46, at joint 23 a outside of the housing 20.The joints 23 a,23 b including common axis of rotation and arm 60 orshaft upon which the rotatable member 44, handle member 46 and secondupward bow 22 are rotatably mounted. Optionally, the arm 60 has at leastone keyed feature 62 for coordinated rotation of elements.

The handle member 46 has a first portion 52 integrally formed with asecond portion 54. The cam lockout 42 includes a protrusion 56 that isgenerally guided by the second portion 54 of the handle member 46 tocause rotation of the cam lockout 42 in either direction.

The handle member 46 is selectively caused to rotation in a seconddirection (as indicated by arrow ‘c’), e.g., clockwise, from an unlockedposition (upward location; see FIG. 2) to a lockout position (downwardlocation; see FIG. 3). When the first portion 52 of the handle member 46is up (unlocked position), the second portion 56 of the handle member 56keeps the cam lockout 46 from abutting against the rotatable member 44.When the first portion 52 is down (locked position), the second portion56 has rotated enough out of the way of the cam lockout 42 so that thecam lockout 42 can rotate in the first direction ‘d’ into engagementwith the rotatable member 44. Thus, as the handle member 46 is rotated‘c’ to the locked position, the cam lockout 42 can rotate in the firstdirection ‘d’ and the rotatable member 44 can rotate in the seconddirection ‘e’ until the second surface 50 of the rotatable member 44abuts against the surface 36 of the cam lockout 42, which preventsfurther rotation.

Referring more particularly to FIGS. 4-10, with the handle member 46beginning in the unlocked position (see FIGS. 4-7) and then rotating inthe second direction ‘c’ (see FIG. 8) causes the first portion 52rotation generally downward until reaching the locked position (seeFIGS. 9-10). Once the handle member 46 rotates in the second direction‘c’—the second portion 54 of the handle 46 clears the protrusion 56 andthe cam lockout 42 is free to rotate in the first direction ‘d’. As thecam lockout 42 rotates in the first direction ‘d’, the rotatable member44 rotates in the second direction ‘e’ until the abutting surface 36 ofthe cam lockout 42 and the second surface 50 of the rotatable member 44meet (see FIGS. 10 and 3). Thus, the cam lockout 42 stops the rotatablemember 44 from being able to rotate any further in that direction.

Referring to FIGS. 1-10 generally, when the cam 30 is in a firstposition the cam 30 abuts against the surface 48 on the rotatable member44 preventing rotation of the rotatable member 44 in that direction (SeeFIG. 2). In this first locked position (or “cam locked position”), wherethe cam 30 prevents rotation of the rotatable member 44 in one direction(e.g., counterclockwise), the handle 46 can remain in an unlockedposition (see FIG. 2). When the cam 30 is rotated out of engagement withthe rotatable member 44 by the cable 26, the rotatable member 44 is thenable to rotate to any intermediate position (e.g., see FIG. 8). Once thehandle member 46 rotates a predetermined amount to a locked position, asset forth previously, the rotatable member 44 rotates back in the otherdirection until the second surface 50 of the rotatable member 44 abutsagainst the surface 36 of the lockout cam 42 (see FIGS. 3 and 10). Thus,the handle member 46 is also rotatable to a respective locked position(or “handle locked position”) (See FIGS. 3 and 10) where the position isthen selectively held.

Preferably, when the assembly 10 is in a first position, where the cam30 abuts against the surface 48 of the rotatable member 44 (see FIG. 2),the second upward bow 22 is held in place, thereby holding the soft topassembly 14 in the open/sunroof position. This stops the whole soft topsystem from rolling down. However, preferably, the cam 30 can be rotatedout of engagement with the rotatable member 44 and the handle mechanism46 can be rotated to the locked position, and, preferably, the secondupward bow 22 can be rotated into the downward position (indicated inphantom in FIG. 1) along with the first upward bow 16 rotated (asindicated by arrow ‘f’) into the downward position (see FIG. 13), andthe cam lockout 42 abuts against the second surface 50 of the rotatablemember 44 (see FIG. 3).

According to an embodiment of the present invention, when the assembly10 is in a second position, where the surface 36 of the cam lockout 42abuts against the opposite surface 50 of the rotatable member 44 (seeFIG. 3), the first and/or second upward bows 16,22 is/are prevented fromrotating back up to the open/sunroof position.

Preferably, the lift assist locking mechanism is a spring lift assistassembly incorporating a coil spring arrangement. Most preferably, aclock spring 58 is operably coupled to at least the housing 20 and aboutat least the joint 23 b area. The clock spring 58 is operably coiled andmounted relative to the rotating features of the joint 23 a,23 b.Preferably, one end of the clock spring 58 is operably mounted to thehousing 20. The clock spring 58 is windable about the joint area 23 aand/or 23 b. The clock spring 58 torque or torsional force stops fromunwinding or rotating movement. Other springs or suitable torsionmechanisms are contemplated depending on the application withoutdeparture from the scope of the present invention.

In accordance with the present invention, lift assist lockdown factionis inside of the lockdown mechanism, which has advantageous over outsidethe mechanism. Previously, the lockdown position only could be lockedfrom one position. In accordance with the present invention, the handlemember 46 can move to be locked in any position. FIGS. 4 to 10illustrate exemplary lockdown rotation.

Referring more particularly to FIGS. 11-12 and 14-15, an exemplary softtop assembly is shown generally at 14. It is understood, however, thatthe locking lift assist assembly 10 of the present invention isadaptable for use with any other soft top depending on the applicationwithout departing from the scope of the present invention, e.g., foldingsoft top for an SUV, folding/sliding soft top for an SUV, soft top for2-door SUV, soft top for 4-door SUV, etc. Preferably, the soft topassembly 14 is foldable rearward (see FIG. 14) to move the top betweenthe closed position (see FIG. 11) and the open/sunroof position (seeFIG. 12). The closed position closes off a roof top opening. Theopen/sunroof position uncovers the roof top opening, e.g., generallyover the front cockpit or generally over the front and rear cockpits).The soft top assembly 14 is further operably moveable to anopen/downward position (see FIG. 15), e.g., via guide rollers carried intracks that are connected to opposing sport bars for controlled motionof the soft top between the open/sunroof position (FIG. 12) and theopen/downward position (FIG. 15).

FIG. 13 illustrates the first upward bow 16 rotated downward in a stowedposition (e.g., the soft top assembly 14 has been folded and slidrearward and rotated downward thereby causing the first and secondupward bows 16 and 22 to rotate to the downward position, along with therest of the top/cover/bows/linkages/fabric management bows/siderails/rollers, etc).

Referring to FIGS. 1-15 generally, it is understood that the right handlift assist assembly is substantially a mirror image to the left handlift assist assembly. The assemblies 10,10 are preferably connected toopposing sport bars 12,12. Preferably, a single pull of the handlemechanism 28 can unlock both assemblies 10,10 simultaneously.

The lift assist assembly 10 is adaptable and utilizable with any softtop assembly for a convertible roof, four-door sport-utility vehicles,two-door sport-utility vehicles or any other vehicle of any kinddepending on the application without departing from the scope of thepresent invention.

The lift assist locking mechanism is adaptable to any articulating softtop assembly where controlling the movement of the soft top between asunroof position and at least one further rearward opened position isdesired.

When locked in the down position, it is also contemplated that the softtop assembly 14 can be removed from the vehicle.

The description of the invention is merely exemplary in nature and,thus, variations that do not depart from the essence of the inventionare intended to be within the scope of the invention. Such variationsare not to be regarded as a departure from the spirit and scope of theinvention.

1. A locking lift assist system adapted for a vehicle, comprising: a housing operably adapted to connect to the vehicle; a rotatable member rotatably connected within the housing; a cam operably rotatably connected to the housing, said rotatable member including a first surface to selectively engage said cam to prevent rotation of said rotatable member in a first direction; a cam lockout operably rotatably connected to the housing, said rotatable member including a second surface to selectively engage said cam lockout to prevent rotation of said rotatable member in a second direction; and a handle member operably rotatably connected within the housing, having the same axis of rotation with the rotatable member, said handle member selectively rotatable between an unlocked and a locked position, wherein said locked position of said handle member allows said cam lockout to rotate into engagement with said second surface of said rotatable member to prevent rotation of said rotatable member in said second direction.
 2. The locking lift assist assembly of claim 1, wherein rotating said handle member to said unlocked position causes said handle member to push said cam lockout out of engagement with said second surface allowing said rotatable member to rotate in said second direction.
 3. The locking lift assist assembly of claim 1, wherein said handle member includes a first portion that is an operator accessible handle outside of said housing and a second portion that is located within said housing, wherein said second portion causes rotation of said cam lockout into/out of abutting engagement with said rotatable portion when said operator selectively rotates said handle member between said locked and unlocked positions.
 4. The locking lift assist assembly of claim 1, further comprising a handle release mechanism operably connected to said cam to selectively cause rotation of said cam out of abutting engagement with said first surface thereby allowing said rotatable member to rotate in said first direction.
 5. The locking lift assist assembly of claim 1, further comprising an operator handle release mechanism with a cable operably connected to the cam to rotate the cam to an unlocked position out of contact with said rotatable member when desired.
 6. The locking lift assist assembly of claim 1, further comprising a clock spring operably coupled adjacent to the rotatable member, said clock spring operably unwinds in one direction of said rotation and operably winds up in the other direction of said rotation.
 7. The locking lift assist assembly of claim 1, further comprising at least one upward bow operably rotatably connected adjacent to said handle member, wherein when said handle member is in one of said locked or unlocked positions said cam is in abutting engagement with said rotatable member and prevents said at least one upward bow from rotating in a first direction, and wherein when said handle member is in the other of said locked or unlocked positions said cam lockout is in abutting engagement with said rotatable member and prevents said at least one upward bow from rotating in the same or a second direction.
 8. The locking lift assist assembly of claim 7, wherein said at least one upward bow is part of a soft top assembly operably moveable between an open/sunroof position and an open/downward position, wherein selectively rotating said at least one upward bow in a rearward/downward direction allows said soft top assembly to rotate to said open/downward position.
 9. The locking lift assist assembly of claim 1, further comprising an arm operably coupled to said housing and at least one upward bow operably coupled to said arm, wherein said rotatable member and handle member are rotatably connected to said arm within said housing, and wherein said at least one upward bow is rotatably connected to said arm outside of said housing.
 10. The locking lift assist assembly of claim 9, further comprising another upward bow operably rotatably connected to said housing, wherein rotating said upward bow and said another upward bow rotates a soft top assembly between an open/sunroof position and an open/downward position.
 11. The locking lift assist assembly of claim 1, wherein said locking lift assist assembly is operably adapted to connect to a sport bar of the vehicle.
 12. The locking lift assist assembly of claim 1, wherein said cam is biased to a cam locking position against said first surface of said rotatable member by a spring.
 13. The locking lift assist assembly of claim 1, wherein said cam lockout further comprises a protrusion against said handle member, wherein said protrusion is guided by rotation of said handle member to allow rotation of said cam lockout in/out of engagement with said rotatable member.
 14. The locking lift assist assembly of claim 1, wherein two of said lift assist assemblies are incorporated with a soft top assembly that is moveable between a closed position to cover a roof top open, an open/sunroof position, and an open/down position, wherein said locking lift assist assemblies selectively lock said soft top assembly in said open/sunroof position with said cam or cam lockout against said rotatable member and selectively locks said soft top assembly in said open/downward position with the other of said cam or cam lockout against said rotatable member.
 15. A locking lift assist assembly adapted for a sport utility vehicle, comprising: a housing operably adapted to connect to the sport utility vehicle; a rotatable member rotatably coupled within the housing to an arm; a cam operably rotatably connected to the housing, said rotatable member including a first surface to selectively engage said cam to prevent rotation of said rotatable member in a first direction, wherein said cam is biased cam locking position in contact with said first surface of said rotatable member; a cam lockout operably rotatably connected to the housing, said rotatable member including a second surface to selectively engage said cam lockout to prevent rotation of said rotatable member in a second direction; a first bow operably rotatably connected to the housing; an opening formed in said housing to allow selective rotation of said first bow by an operator when desired; a second bow rotatably coupled to said arm at a location outside of said housing; a handle member rotatably coupled to said arm at a location within said housing, said handle member selectively rotatable between an unlocked and a locked position to allow said rotatable member to abuttingly engage said cam or said cam lockout to prevent further rotation of said rotatable member to keep said second bow from rotating in said first or second direction when desired.
 16. The locking lift assist assembly of claim 15, wherein said cam lockout further comprises a protrusion against said handle member, wherein said cam lockout rotation is guided by said protrusion against said handle member to allow rotation of said cam lockout into/out of engagement with said rotatable member.
 17. The locking lift assist assembly of claim 15, further comprising an operator handle release mechanism with a cable operably connected to the cam to rotate the cam to an unlocked position out of contact with said rotatable member when desired.
 18. A lift assist lockdown assembly for a soft top assembly adapted for a sport utility vehicle, comprising: a shaft connected to a bow coupled to the soft top assembly, wherein the bow is rotatable between a first position and a downward second position; a rotatable member operably connected to the shaft and rotatable in a first direction and a second direction; a cam rotatably mounted for selective movement between a biased locked position and an unlocked position, wherein the locked position prevents rotation of the rotatable member in the first direction to keep the bow in an open/sunroof position; a cam lockout rotatably mounted in proximity to the rotating member; a handle member operably connected to the shaft for selective movement between a locked position and an unlocked position, wherein the locked position allows the cam lockout to come into engagement with the rotatable member to prevent rotation of the rotatable member in the second direction to keep the bow in an open/downward position.
 19. The locking lift assist assembly of claim 18, further comprising an operator handle release mechanism operably connected to the cam to selectively rotate the cam to the unlocked position.
 20. The locking lift assist assembly of claim 18, further comprising a clock spring with predetermined torque to stop unwinding and thereby rotation. 